Presentation on Tools and skill on network management and monitoring in Mobile telecommunication industry. The presentation evaluates tools needed in modern times to evaluate traffic trend and close monitoring.

1. Network Management,
Monitoring and Control

4. Elements of Network Management
 Fault
 Configuration
 Accounting
 Performance
 Security

5. Fault Management Overview
 When fault occurs
 Determine where
 Isolate rest of network so it can continue to function
 Reconfigure or modify network to minimize impact of operation without failed
components
 Repair or replace failed components
 Fault is abnormal condition that requires action to repair
 Errors (e.g. single bit error on line) occur and are not faults

6. Fault Management User Requirements
 Fast and reliable problem resolution
 Immediate notification
 Impact and duration minimized by redundant components and
routes
 Fault tolerance
 Fault management capability should be redundant
 After correction, fault management must ensure problem is truly
resolved and no new problems introduced
 Problem tracking and control
 Minimal effect on network performance

7. Configuration and Name Management
Overview
 Choose appropriate software and attributes and values (e.g., a transport layer
retransmission timer) for device depending on function(s)
 Initializing network and gracefully shutting down
 Maintaining, adding, and updating relationships among components
 Status of components during network operation

8. Configuration and Name Management User
Requirements
 Startup and shutdown
 Unattended
 Need to identify components of network and connectivity
 Define and modify default attributes
 Load predefined attributes
 Change connectivity
 Reconfiguration
 Status information and notification of changes
 Routine or request driven reports
 Authorized users (operators) only to manage and control operation (e.g.,
software distribution and updating)

9. Accounting Management
Overview
 Individual cost centers or projects charged for use of network services
 Network manager needs to be able to track use of network
 User or group may be abusing access
 Users may be making inefficient use of network
 Need to plan for network growth

10. Accounting Management
User Requirements
 Needs to specify sort of accounting information recorded at various nodes
 Interval between successive sendings of information
 Algorithms used in calculating charges
 Accounting reports under network manager control
 Verify users' authorization to access and manipulate accounting information

11. Performance Management Overview
 Monitoring
 Tracks activities
 What is the level of capacity utilization?
 Is there excessive traffic?
 Has throughput been reduced to unacceptable levels?
 Are there bottlenecks?
 Is response time increasing?
 Controlling
 Make adjustments to improve performance
 Identify resources to be monitored
 Metrics and values for resources

12. Performance Management
User Requirements
 Must be known in sufficient detail to assess user queries
 Applications need consistently good response time
 Performance statistics help planning, management and maintenance
 Recognize potential bottlenecks before they cause problems
 Capacity planning based on performance information

13. Security Management
Overview
 Generating, distributing, and storing encryption keys
 Passwords and access control information maintained and distributed
 Monitoring and controlling access
 Logging
 Collection, storage, and examination of audit records and security logs

14. Security Management
User Requirements
 Facilities available for authorized users only
 Users want to know proper security in force and effective
 Management of security facilities is secure

15. Network Management Systems
 Collection of tools for network management
 Single operator interface
 Powerful, user friendly command set
 Performing most or all management tasks
 Minimal amount of separate equipment
 i.e. use existing equipment
 View entire network as unified architecture
 Active elements provide regular feedback

16. Key Elements
 Management station or manager
 Agent
 Management information base
 Network management protocol

17. Figure 17.1 Elements of a Network
Management System

18. Management Station
 Stand alone system or part of shared system
 Interface for human network manager
 Set of management applications
 Data analysis
 Fault recovery
 Interface to monitor and control network
 Translate manager’s requirements into monitoring and control of remote elements
 Data base of network management information extracted from managed entities

19. Management Agent
 Hosts, bridges, hubs, routers equipped with agent software
 Allow them to be managed from management station
 Respond to requests for information
 Respond to requests for action
 Asynchronously supply unsolicited information

20. Management Information Base
 MIB
 Representation of network resources as objects
 Each object a variable representing one aspect of managed object
 MIB is collection of access points at agent for management of station
 Objects standardized across class of system
 Bridge, router etc.

21. Network Management Protocol
 Link between management station and agent
 TCP/IP uses SNMP
 OSI uses Common Management Information Protocol (CMIP)
 SNMPv2 (enhanced SNMP) for OSI and TCP/IP

22. Management Layout
 May be centralized in simple network
 May be distributed in large, complex network
 Multiple management servers
 Each manages pool of agents
 Management may be delegated to intermediate manager

23. Figure 17.2 Example Distributed Network Management
Configuration

24. Future Fit Network Management and
Monitoring

30. Thank You